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Finding the Fourth Proportional to 368,631.04, 508,711.76 and 207,488.48

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Solution

The fourth proportional to 368,631.04, 508,711.76 and 207,488.48 is: 286,334.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,631.04 : 508,711.76 = 207,488.48 : x
  2. Step 2: Convert to fraction form
    368,631.04/508,711.76 = 207,488.48/x
  3. Step 3: Cross multiply
    368,631.04x = 508,711.76 × 207,488.48
  4. Step 4: Simplify right side
    368,631.04x = 105,551,829,840.53
  5. Step 5: Solve for x
    x = 105,551,829,840.53/368,631.04
  6. Step 6: Final answer
    x = 286,334.62

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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.