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Finding the Fourth Proportional to 560,853, 841,281.30 and 140,128.92

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Solution

The fourth proportional to 560,853, 841,281.30 and 140,128.92 is: 210,193.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,853 : 841,281.30 = 140,128.92 : x
  2. Step 2: Convert to fraction form
    560,853/841,281.30 = 140,128.92/x
  3. Step 3: Cross multiply
    560,853x = 841,281.30 × 140,128.92
  4. Step 4: Simplify right side
    560,853x = 117,887,839,985.20
  5. Step 5: Solve for x
    x = 117,887,839,985.20/560,853
  6. Step 6: Final answer
    x = 210,193.83

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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.