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Finding the Fourth Proportional to 203,031.40, 304,287.90 and 156,051.40

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Solution

The fourth proportional to 203,031.40, 304,287.90 and 156,051.40 is: 233,877.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,031.40 : 304,287.90 = 156,051.40 : x
  2. Step 2: Convert to fraction form
    203,031.40/304,287.90 = 156,051.40/x
  3. Step 3: Cross multiply
    203,031.40x = 304,287.90 × 156,051.40
  4. Step 4: Simplify right side
    203,031.40x = 47,484,552,798.06
  5. Step 5: Solve for x
    x = 47,484,552,798.06/203,031.40
  6. Step 6: Final answer
    x = 233,877.88

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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.