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Finding the Fourth Proportional to 245,726.80, 368,444.40 and 127,628.80

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Solution

The fourth proportional to 245,726.80, 368,444.40 and 127,628.80 is: 191,367.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,726.80 : 368,444.40 = 127,628.80 : x
  2. Step 2: Convert to fraction form
    245,726.80/368,444.40 = 127,628.80/x
  3. Step 3: Cross multiply
    245,726.80x = 368,444.40 × 127,628.80
  4. Step 4: Simplify right side
    245,726.80x = 47,024,116,638.72
  5. Step 5: Solve for x
    x = 47,024,116,638.72/245,726.80
  6. Step 6: Final answer
    x = 191,367.47

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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.