Home / 245,870.08-338,638.08-212,277.76

Finding the Fourth Proportional to 245,870.08, 338,638.08 and 212,277.76

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Solution

The fourth proportional to 245,870.08, 338,638.08 and 212,277.76 is: 292,371.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,870.08 : 338,638.08 = 212,277.76 : x
  2. Step 2: Convert to fraction form
    245,870.08/338,638.08 = 212,277.76/x
  3. Step 3: Cross multiply
    245,870.08x = 338,638.08 × 212,277.76
  4. Step 4: Simplify right side
    245,870.08x = 71,885,333,073.10
  5. Step 5: Solve for x
    x = 71,885,333,073.10/245,870.08
  6. Step 6: Final answer
    x = 292,371.21

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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.