Home / 230,312.05-317,825.83-128,337.10

Finding the Fourth Proportional to 230,312.05, 317,825.83 and 128,337.10

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Solution

The fourth proportional to 230,312.05, 317,825.83 and 128,337.10 is: 177,102.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,312.05 : 317,825.83 = 128,337.10 : x
  2. Step 2: Convert to fraction form
    230,312.05/317,825.83 = 128,337.10/x
  3. Step 3: Cross multiply
    230,312.05x = 317,825.83 × 128,337.10
  4. Step 4: Simplify right side
    230,312.05x = 40,788,845,327.29
  5. Step 5: Solve for x
    x = 40,788,845,327.29/230,312.05
  6. Step 6: Final answer
    x = 177,102.52

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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.