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Finding the Fourth Proportional to 307,641.58, 424,545.47 and 169,820.59

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Solution

The fourth proportional to 307,641.58, 424,545.47 and 169,820.59 is: 234,352.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,641.58 : 424,545.47 = 169,820.59 : x
  2. Step 2: Convert to fraction form
    307,641.58/424,545.47 = 169,820.59/x
  3. Step 3: Cross multiply
    307,641.58x = 424,545.47 × 169,820.59
  4. Step 4: Simplify right side
    307,641.58x = 72,096,562,197.23
  5. Step 5: Solve for x
    x = 72,096,562,197.23/307,641.58
  6. Step 6: Final answer
    x = 234,352.46

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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.