Home / 389,622.60-584,312.40-153,037.80

Finding the Fourth Proportional to 389,622.60, 584,312.40 and 153,037.80

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Solution

The fourth proportional to 389,622.60, 584,312.40 and 153,037.80 is: 229,508.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,622.60 : 584,312.40 = 153,037.80 : x
  2. Step 2: Convert to fraction form
    389,622.60/584,312.40 = 153,037.80/x
  3. Step 3: Cross multiply
    389,622.60x = 584,312.40 × 153,037.80
  4. Step 4: Simplify right side
    389,622.60x = 89,421,884,208.72
  5. Step 5: Solve for x
    x = 89,421,884,208.72/389,622.60
  6. Step 6: Final answer
    x = 229,508.98

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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.