Home / 245,875.08-339,340.58-143,931.72

Finding the Fourth Proportional to 245,875.08, 339,340.58 and 143,931.72

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Solution

The fourth proportional to 245,875.08, 339,340.58 and 143,931.72 is: 198,645.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,875.08 : 339,340.58 = 143,931.72 : x
  2. Step 2: Convert to fraction form
    245,875.08/339,340.58 = 143,931.72/x
  3. Step 3: Cross multiply
    245,875.08x = 339,340.58 × 143,931.72
  4. Step 4: Simplify right side
    245,875.08x = 48,841,873,345.20
  5. Step 5: Solve for x
    x = 48,841,873,345.20/245,875.08
  6. Step 6: Final answer
    x = 198,645.07

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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.