Home / 318,278.16-439,215.09-175,038.20

Finding the Fourth Proportional to 318,278.16, 439,215.09 and 175,038.20

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Solution

The fourth proportional to 318,278.16, 439,215.09 and 175,038.20 is: 241,547.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,278.16 : 439,215.09 = 175,038.20 : x
  2. Step 2: Convert to fraction form
    318,278.16/439,215.09 = 175,038.20/x
  3. Step 3: Cross multiply
    318,278.16x = 439,215.09 × 175,038.20
  4. Step 4: Simplify right side
    318,278.16x = 76,879,418,766.44
  5. Step 5: Solve for x
    x = 76,879,418,766.44/318,278.16
  6. Step 6: Final answer
    x = 241,547.89

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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.