Home / 291,572.12-402,370.40-169,088.31

Finding the Fourth Proportional to 291,572.12, 402,370.40 and 169,088.31

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Solution

The fourth proportional to 291,572.12, 402,370.40 and 169,088.31 is: 233,342.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,572.12 : 402,370.40 = 169,088.31 : x
  2. Step 2: Convert to fraction form
    291,572.12/402,370.40 = 169,088.31/x
  3. Step 3: Cross multiply
    291,572.12x = 402,370.40 × 169,088.31
  4. Step 4: Simplify right side
    291,572.12x = 68,036,131,352.74
  5. Step 5: Solve for x
    x = 68,036,131,352.74/291,572.12
  6. Step 6: Final answer
    x = 233,342.37

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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.