Home / 475,285.20-712,927.80-142,861.20

Finding the Fourth Proportional to 475,285.20, 712,927.80 and 142,861.20

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Solution

The fourth proportional to 475,285.20, 712,927.80 and 142,861.20 is: 214,291.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,285.20 : 712,927.80 = 142,861.20 : x
  2. Step 2: Convert to fraction form
    475,285.20/712,927.80 = 142,861.20/x
  3. Step 3: Cross multiply
    475,285.20x = 712,927.80 × 142,861.20
  4. Step 4: Simplify right side
    475,285.20x = 101,849,721,021.36
  5. Step 5: Solve for x
    x = 101,849,721,021.36/475,285.20
  6. Step 6: Final answer
    x = 214,291.80

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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.