Home / 205,390.40-307,567.20-152,513.60

Finding the Fourth Proportional to 205,390.40, 307,567.20 and 152,513.60

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Solution

The fourth proportional to 205,390.40, 307,567.20 and 152,513.60 is: 228,385.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,390.40 : 307,567.20 = 152,513.60 : x
  2. Step 2: Convert to fraction form
    205,390.40/307,567.20 = 152,513.60/x
  3. Step 3: Cross multiply
    205,390.40x = 307,567.20 × 152,513.60
  4. Step 4: Simplify right side
    205,390.40x = 46,908,180,913.92
  5. Step 5: Solve for x
    x = 46,908,180,913.92/205,390.40
  6. Step 6: Final answer
    x = 228,385.46

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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.