Home / 288,284.62-432,426.94-209,897.68

Finding the Fourth Proportional to 288,284.62, 432,426.94 and 209,897.68

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Solution

The fourth proportional to 288,284.62, 432,426.94 and 209,897.68 is: 314,846.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,284.62 : 432,426.94 = 209,897.68 : x
  2. Step 2: Convert to fraction form
    288,284.62/432,426.94 = 209,897.68/x
  3. Step 3: Cross multiply
    288,284.62x = 432,426.94 × 209,897.68
  4. Step 4: Simplify right side
    288,284.62x = 90,765,411,475.50
  5. Step 5: Solve for x
    x = 90,765,411,475.50/288,284.62
  6. Step 6: Final answer
    x = 314,846.53

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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.