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Finding the Fourth Proportional to 228,559.65, 342,929.72 and 70,800.40

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Solution

The fourth proportional to 228,559.65, 342,929.72 and 70,800.40 is: 106,228.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,559.65 : 342,929.72 = 70,800.40 : x
  2. Step 2: Convert to fraction form
    228,559.65/342,929.72 = 70,800.40/x
  3. Step 3: Cross multiply
    228,559.65x = 342,929.72 × 70,800.40
  4. Step 4: Simplify right side
    228,559.65x = 24,279,561,347.89
  5. Step 5: Solve for x
    x = 24,279,561,347.89/228,559.65
  6. Step 6: Final answer
    x = 106,228.55

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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.