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Finding the Fourth Proportional to 369,617.16, 510,070.98 and 208,471.71

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Solution

The fourth proportional to 369,617.16, 510,070.98 and 208,471.71 is: 287,690.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,617.16 : 510,070.98 = 208,471.71 : x
  2. Step 2: Convert to fraction form
    369,617.16/510,070.98 = 208,471.71/x
  3. Step 3: Cross multiply
    369,617.16x = 510,070.98 × 208,471.71
  4. Step 4: Simplify right side
    369,617.16x = 106,335,366,871.62
  5. Step 5: Solve for x
    x = 106,335,366,871.62/369,617.16
  6. Step 6: Final answer
    x = 287,690.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.