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Finding the Fourth Proportional to 453,153, 625,269.45 and 256,920.18

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Solution

The fourth proportional to 453,153, 625,269.45 and 256,920.18 is: 354,503.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,153 : 625,269.45 = 256,920.18 : x
  2. Step 2: Convert to fraction form
    453,153/625,269.45 = 256,920.18/x
  3. Step 3: Cross multiply
    453,153x = 625,269.45 × 256,920.18
  4. Step 4: Simplify right side
    453,153x = 160,644,339,642.50
  5. Step 5: Solve for x
    x = 160,644,339,642.50/453,153
  6. Step 6: Final answer
    x = 354,503.53

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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.