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Finding the Fourth Proportional to 292,374.90, 438,651.45 and 123,807.42

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Solution

The fourth proportional to 292,374.90, 438,651.45 and 123,807.42 is: 185,748.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,374.90 : 438,651.45 = 123,807.42 : x
  2. Step 2: Convert to fraction form
    292,374.90/438,651.45 = 123,807.42/x
  3. Step 3: Cross multiply
    292,374.90x = 438,651.45 × 123,807.42
  4. Step 4: Simplify right side
    292,374.90x = 54,308,304,303.76
  5. Step 5: Solve for x
    x = 54,308,304,303.76/292,374.90
  6. Step 6: Final answer
    x = 185,748.86

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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.