Home / 278,450.48-384,279.18-157,545.74

Finding the Fourth Proportional to 278,450.48, 384,279.18 and 157,545.74

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Solution

The fourth proportional to 278,450.48, 384,279.18 and 157,545.74 is: 217,423.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,450.48 : 384,279.18 = 157,545.74 : x
  2. Step 2: Convert to fraction form
    278,450.48/384,279.18 = 157,545.74/x
  3. Step 3: Cross multiply
    278,450.48x = 384,279.18 × 157,545.74
  4. Step 4: Simplify right side
    278,450.48x = 60,541,547,779.69
  5. Step 5: Solve for x
    x = 60,541,547,779.69/278,450.48
  6. Step 6: Final answer
    x = 217,423.03

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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.