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Finding the Fourth Proportional to 318,952, 440,173.92 and 175,712.32

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Solution

The fourth proportional to 318,952, 440,173.92 and 175,712.32 is: 242,494.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,952 : 440,173.92 = 175,712.32 : x
  2. Step 2: Convert to fraction form
    318,952/440,173.92 = 175,712.32/x
  3. Step 3: Cross multiply
    318,952x = 440,173.92 × 175,712.32
  4. Step 4: Simplify right side
    318,952x = 77,343,980,686.69
  5. Step 5: Solve for x
    x = 77,343,980,686.69/318,952
  6. Step 6: Final answer
    x = 242,494.11

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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.