Home / 642,823.49-964,136.72-169,545.76

Finding the Fourth Proportional to 642,823.49, 964,136.72 and 169,545.76

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Solution

The fourth proportional to 642,823.49, 964,136.72 and 169,545.76 is: 254,292.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,823.49 : 964,136.72 = 169,545.76 : x
  2. Step 2: Convert to fraction form
    642,823.49/964,136.72 = 169,545.76/x
  3. Step 3: Cross multiply
    642,823.49x = 964,136.72 × 169,545.76
  4. Step 4: Simplify right side
    642,823.49x = 163,465,290,949.83
  5. Step 5: Solve for x
    x = 163,465,290,949.83/642,823.49
  6. Step 6: Final answer
    x = 254,292.65

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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.