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Finding the Fourth Proportional to 525,613, 788,434.08 and 151,636

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Solution

The fourth proportional to 525,613, 788,434.08 and 151,636 is: 227,458.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,613 : 788,434.08 = 151,636 : x
  2. Step 2: Convert to fraction form
    525,613/788,434.08 = 151,636/x
  3. Step 3: Cross multiply
    525,613x = 788,434.08 × 151,636
  4. Step 4: Simplify right side
    525,613x = 119,554,990,154.88
  5. Step 5: Solve for x
    x = 119,554,990,154.88/525,613
  6. Step 6: Final answer
    x = 227,458.21

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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.