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Finding the Fourth Proportional to 219,259.70, 328,792.35 and 100,870.10

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Solution

The fourth proportional to 219,259.70, 328,792.35 and 100,870.10 is: 151,260.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,259.70 : 328,792.35 = 100,870.10 : x
  2. Step 2: Convert to fraction form
    219,259.70/328,792.35 = 100,870.10/x
  3. Step 3: Cross multiply
    219,259.70x = 328,792.35 × 100,870.10
  4. Step 4: Simplify right side
    219,259.70x = 33,165,317,223.74
  5. Step 5: Solve for x
    x = 33,165,317,223.74/219,259.70
  6. Step 6: Final answer
    x = 151,260.43

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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.