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Finding the Fourth Proportional to 303,656.40, 455,404.95 and 90,366.93

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Solution

The fourth proportional to 303,656.40, 455,404.95 and 90,366.93 is: 135,526.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,656.40 : 455,404.95 = 90,366.93 : x
  2. Step 2: Convert to fraction form
    303,656.40/455,404.95 = 90,366.93/x
  3. Step 3: Cross multiply
    303,656.40x = 455,404.95 × 90,366.93
  4. Step 4: Simplify right side
    303,656.40x = 41,153,547,238.30
  5. Step 5: Solve for x
    x = 41,153,547,238.30/303,656.40
  6. Step 6: Final answer
    x = 135,526.69

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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.