Home / 323,545.18-485,319-98,904.74

Finding the Fourth Proportional to 323,545.18, 485,319 and 98,904.74

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Solution

The fourth proportional to 323,545.18, 485,319 and 98,904.74 is: 148,357.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,545.18 : 485,319 = 98,904.74 : x
  2. Step 2: Convert to fraction form
    323,545.18/485,319 = 98,904.74/x
  3. Step 3: Cross multiply
    323,545.18x = 485,319 × 98,904.74
  4. Step 4: Simplify right side
    323,545.18x = 48,000,349,512.06
  5. Step 5: Solve for x
    x = 48,000,349,512.06/323,545.18
  6. Step 6: Final answer
    x = 148,357.49

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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.