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Finding the Fourth Proportional to 368,693.32, 553,254.64 and 155,447.88

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Solution

The fourth proportional to 368,693.32, 553,254.64 and 155,447.88 is: 233,262.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,693.32 : 553,254.64 = 155,447.88 : x
  2. Step 2: Convert to fraction form
    368,693.32/553,254.64 = 155,447.88/x
  3. Step 3: Cross multiply
    368,693.32x = 553,254.64 × 155,447.88
  4. Step 4: Simplify right side
    368,693.32x = 86,002,260,888.16
  5. Step 5: Solve for x
    x = 86,002,260,888.16/368,693.32
  6. Step 6: Final answer
    x = 233,262.32

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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.