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Finding the Fourth Proportional to 144,356.67, 216,531.36 and 39,172.91

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Solution

The fourth proportional to 144,356.67, 216,531.36 and 39,172.91 is: 58,758.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,356.67 : 216,531.36 = 39,172.91 : x
  2. Step 2: Convert to fraction form
    144,356.67/216,531.36 = 39,172.91/x
  3. Step 3: Cross multiply
    144,356.67x = 216,531.36 × 39,172.91
  4. Step 4: Simplify right side
    144,356.67x = 8,482,163,477.46
  5. Step 5: Solve for x
    x = 8,482,163,477.46/144,356.67
  6. Step 6: Final answer
    x = 58,758.38

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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.