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Finding the Fourth Proportional to 303,232.68, 455,129.15 and 153,578.16

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Solution

The fourth proportional to 303,232.68, 455,129.15 and 153,578.16 is: 230,509.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,232.68 : 455,129.15 = 153,578.16 : x
  2. Step 2: Convert to fraction form
    303,232.68/455,129.15 = 153,578.16/x
  3. Step 3: Cross multiply
    303,232.68x = 455,129.15 × 153,578.16
  4. Step 4: Simplify right side
    303,232.68x = 69,897,896,651.47
  5. Step 5: Solve for x
    x = 69,897,896,651.47/303,232.68
  6. Step 6: Final answer
    x = 230,509.11

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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.