Home / 288,002.10-432,521.55-209,205.30

Finding the Fourth Proportional to 288,002.10, 432,521.55 and 209,205.30

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Solution

The fourth proportional to 288,002.10, 432,521.55 and 209,205.30 is: 314,184.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,002.10 : 432,521.55 = 209,205.30 : x
  2. Step 2: Convert to fraction form
    288,002.10/432,521.55 = 209,205.30/x
  3. Step 3: Cross multiply
    288,002.10x = 432,521.55 × 209,205.30
  4. Step 4: Simplify right side
    288,002.10x = 90,485,800,624.22
  5. Step 5: Solve for x
    x = 90,485,800,624.22/288,002.10
  6. Step 6: Final answer
    x = 314,184.52

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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.