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Finding the Fourth Proportional to 245,437.70, 368,156.55 and 127,339.70

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Solution

The fourth proportional to 245,437.70, 368,156.55 and 127,339.70 is: 191,009.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,437.70 : 368,156.55 = 127,339.70 : x
  2. Step 2: Convert to fraction form
    245,437.70/368,156.55 = 127,339.70/x
  3. Step 3: Cross multiply
    245,437.70x = 368,156.55 × 127,339.70
  4. Step 4: Simplify right side
    245,437.70x = 46,880,944,630.04
  5. Step 5: Solve for x
    x = 46,880,944,630.04/245,437.70
  6. Step 6: Final answer
    x = 191,009.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.