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Finding the Fourth Proportional to 369,127.70, 517,128.70 and 369,127.70

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Solution

The fourth proportional to 369,127.70, 517,128.70 and 369,127.70 is: 517,128.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,127.70 : 517,128.70 = 369,127.70 : x
  2. Step 2: Convert to fraction form
    369,127.70/517,128.70 = 369,127.70/x
  3. Step 3: Cross multiply
    369,127.70x = 517,128.70 × 369,127.70
  4. Step 4: Simplify right side
    369,127.70x = 190,886,527,634.99
  5. Step 5: Solve for x
    x = 190,886,527,634.99/369,127.70
  6. Step 6: Final answer
    x = 517,128.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.