Home / 239,300.10-330,233.45-131,870.10

Finding the Fourth Proportional to 239,300.10, 330,233.45 and 131,870.10

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Solution

The fourth proportional to 239,300.10, 330,233.45 and 131,870.10 is: 181,980.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,300.10 : 330,233.45 = 131,870.10 : x
  2. Step 2: Convert to fraction form
    239,300.10/330,233.45 = 131,870.10/x
  3. Step 3: Cross multiply
    239,300.10x = 330,233.45 × 131,870.10
  4. Step 4: Simplify right side
    239,300.10x = 43,547,918,074.85
  5. Step 5: Solve for x
    x = 43,547,918,074.85/239,300.10
  6. Step 6: Final answer
    x = 181,980.36

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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.