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Finding the Fourth Proportional to 440,152, 607,417.12 and 238,948

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Solution

The fourth proportional to 440,152, 607,417.12 and 238,948 is: 329,752.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,152 : 607,417.12 = 238,948 : x
  2. Step 2: Convert to fraction form
    440,152/607,417.12 = 238,948/x
  3. Step 3: Cross multiply
    440,152x = 607,417.12 × 238,948
  4. Step 4: Simplify right side
    440,152x = 145,141,105,989.76
  5. Step 5: Solve for x
    x = 145,141,105,989.76/440,152
  6. Step 6: Final answer
    x = 329,752.24

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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.