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Finding the Fourth Proportional to 228,363.20, 342,570.40 and 70,590.40

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Solution

The fourth proportional to 228,363.20, 342,570.40 and 70,590.40 is: 105,893.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,363.20 : 342,570.40 = 70,590.40 : x
  2. Step 2: Convert to fraction form
    228,363.20/342,570.40 = 70,590.40/x
  3. Step 3: Cross multiply
    228,363.20x = 342,570.40 × 70,590.40
  4. Step 4: Simplify right side
    228,363.20x = 24,182,181,564.16
  5. Step 5: Solve for x
    x = 24,182,181,564.16/228,363.20
  6. Step 6: Final answer
    x = 105,893.51

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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.