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Finding the Fourth Proportional to 291,699.36, 402,508.80 and 162,606.15

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Solution

The fourth proportional to 291,699.36, 402,508.80 and 162,606.15 is: 224,376.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,699.36 : 402,508.80 = 162,606.15 : x
  2. Step 2: Convert to fraction form
    291,699.36/402,508.80 = 162,606.15/x
  3. Step 3: Cross multiply
    291,699.36x = 402,508.80 × 162,606.15
  4. Step 4: Simplify right side
    291,699.36x = 65,450,406,309.12
  5. Step 5: Solve for x
    x = 65,450,406,309.12/291,699.36
  6. Step 6: Final answer
    x = 224,376.24

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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.