Home / 303,535.10-455,302.65-145,682.30

Finding the Fourth Proportional to 303,535.10, 455,302.65 and 145,682.30

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Solution

The fourth proportional to 303,535.10, 455,302.65 and 145,682.30 is: 218,523.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,535.10 : 455,302.65 = 145,682.30 : x
  2. Step 2: Convert to fraction form
    303,535.10/455,302.65 = 145,682.30/x
  3. Step 3: Cross multiply
    303,535.10x = 455,302.65 × 145,682.30
  4. Step 4: Simplify right side
    303,535.10x = 66,329,537,248.10
  5. Step 5: Solve for x
    x = 66,329,537,248.10/303,535.10
  6. Step 6: Final answer
    x = 218,523.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.