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Finding the Fourth Proportional to 369,495.61, 509,639.40 and 240,192.88

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Solution

The fourth proportional to 369,495.61, 509,639.40 and 240,192.88 is: 331,294.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,495.61 : 509,639.40 = 240,192.88 : x
  2. Step 2: Convert to fraction form
    369,495.61/509,639.40 = 240,192.88/x
  3. Step 3: Cross multiply
    369,495.61x = 509,639.40 × 240,192.88
  4. Step 4: Simplify right side
    369,495.61x = 122,411,753,973.37
  5. Step 5: Solve for x
    x = 122,411,753,973.37/369,495.61
  6. Step 6: Final answer
    x = 331,294.21

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1.5x scale

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.