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Finding the Fourth Proportional to 316,129.41, 436,298.42 and 207,325.24

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Solution

The fourth proportional to 316,129.41, 436,298.42 and 207,325.24 is: 286,134.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,129.41 : 436,298.42 = 207,325.24 : x
  2. Step 2: Convert to fraction form
    316,129.41/436,298.42 = 207,325.24/x
  3. Step 3: Cross multiply
    316,129.41x = 436,298.42 × 207,325.24
  4. Step 4: Simplify right side
    316,129.41x = 90,455,674,638.12
  5. Step 5: Solve for x
    x = 90,455,674,638.12/316,129.41
  6. Step 6: Final answer
    x = 286,134.96

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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.