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Finding the Fourth Proportional to 518,503.32, 777,754.98 and 163,545.01

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Solution

The fourth proportional to 518,503.32, 777,754.98 and 163,545.01 is: 245,317.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,503.32 : 777,754.98 = 163,545.01 : x
  2. Step 2: Convert to fraction form
    518,503.32/777,754.98 = 163,545.01/x
  3. Step 3: Cross multiply
    518,503.32x = 777,754.98 × 163,545.01
  4. Step 4: Simplify right side
    518,503.32x = 127,197,944,037.26
  5. Step 5: Solve for x
    x = 127,197,944,037.26/518,503.32
  6. Step 6: Final answer
    x = 245,317.51

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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.