Home / 230,312.30-317,826.18-128,337.35

Finding the Fourth Proportional to 230,312.30, 317,826.18 and 128,337.35

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Solution

The fourth proportional to 230,312.30, 317,826.18 and 128,337.35 is: 177,102.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,312.30 : 317,826.18 = 128,337.35 : x
  2. Step 2: Convert to fraction form
    230,312.30/317,826.18 = 128,337.35/x
  3. Step 3: Cross multiply
    230,312.30x = 317,826.18 × 128,337.35
  4. Step 4: Simplify right side
    230,312.30x = 40,788,968,112.69
  5. Step 5: Solve for x
    x = 40,788,968,112.69/230,312.30
  6. Step 6: Final answer
    x = 177,102.87

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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.