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Finding the Fourth Proportional to 152,420.80, 228,778.64 and 73,590.40

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Solution

The fourth proportional to 152,420.80, 228,778.64 and 73,590.40 is: 110,456.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,420.80 : 228,778.64 = 73,590.40 : x
  2. Step 2: Convert to fraction form
    152,420.80/228,778.64 = 73,590.40/x
  3. Step 3: Cross multiply
    152,420.80x = 228,778.64 × 73,590.40
  4. Step 4: Simplify right side
    152,420.80x = 16,835,911,629.06
  5. Step 5: Solve for x
    x = 16,835,911,629.06/152,420.80
  6. Step 6: Final answer
    x = 110,456.79

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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.