Home / 312,317.28-430,999.22-169,077.32

Finding the Fourth Proportional to 312,317.28, 430,999.22 and 169,077.32

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Solution

The fourth proportional to 312,317.28, 430,999.22 and 169,077.32 is: 233,327.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,317.28 : 430,999.22 = 169,077.32 : x
  2. Step 2: Convert to fraction form
    312,317.28/430,999.22 = 169,077.32/x
  3. Step 3: Cross multiply
    312,317.28x = 430,999.22 × 169,077.32
  4. Step 4: Simplify right side
    312,317.28x = 72,872,194,117.19
  5. Step 5: Solve for x
    x = 72,872,194,117.19/312,317.28
  6. Step 6: Final answer
    x = 233,327.45

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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.