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Finding the Fourth Proportional to 284,562.60, 426,282.30 and 144,421.80

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Solution

The fourth proportional to 284,562.60, 426,282.30 and 144,421.80 is: 216,347.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,562.60 : 426,282.30 = 144,421.80 : x
  2. Step 2: Convert to fraction form
    284,562.60/426,282.30 = 144,421.80/x
  3. Step 3: Cross multiply
    284,562.60x = 426,282.30 × 144,421.80
  4. Step 4: Simplify right side
    284,562.60x = 61,564,457,074.14
  5. Step 5: Solve for x
    x = 61,564,457,074.14/284,562.60
  6. Step 6: Final answer
    x = 216,347.68

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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.