Home / 238,740.64-329,459.47-131,312.16

Finding the Fourth Proportional to 238,740.64, 329,459.47 and 131,312.16

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Solution

The fourth proportional to 238,740.64, 329,459.47 and 131,312.16 is: 181,209.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,740.64 : 329,459.47 = 131,312.16 : x
  2. Step 2: Convert to fraction form
    238,740.64/329,459.47 = 131,312.16/x
  3. Step 3: Cross multiply
    238,740.64x = 329,459.47 × 131,312.16
  4. Step 4: Simplify right side
    238,740.64x = 43,262,034,309.87
  5. Step 5: Solve for x
    x = 43,262,034,309.87/238,740.64
  6. Step 6: Final answer
    x = 181,209.34

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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.