Home / 302,720.30-454,080.45-288,205.10

Finding the Fourth Proportional to 302,720.30, 454,080.45 and 288,205.10

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Solution

The fourth proportional to 302,720.30, 454,080.45 and 288,205.10 is: 432,307.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,720.30 : 454,080.45 = 288,205.10 : x
  2. Step 2: Convert to fraction form
    302,720.30/454,080.45 = 288,205.10/x
  3. Step 3: Cross multiply
    302,720.30x = 454,080.45 × 288,205.10
  4. Step 4: Simplify right side
    302,720.30x = 130,868,301,500.30
  5. Step 5: Solve for x
    x = 130,868,301,500.30/302,720.30
  6. Step 6: Final answer
    x = 432,307.65

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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.