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Finding the Fourth Proportional to 150,465.02, 207,644.04 and 90,038.21

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Solution

The fourth proportional to 150,465.02, 207,644.04 and 90,038.21 is: 124,254.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,465.02 : 207,644.04 = 90,038.21 : x
  2. Step 2: Convert to fraction form
    150,465.02/207,644.04 = 90,038.21/x
  3. Step 3: Cross multiply
    150,465.02x = 207,644.04 × 90,038.21
  4. Step 4: Simplify right side
    150,465.02x = 18,695,896,640.55
  5. Step 5: Solve for x
    x = 18,695,896,640.55/150,465.02
  6. Step 6: Final answer
    x = 124,254.11

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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.