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Finding the Fourth Proportional to 341,376.90, 470,897.16 and 220,589.40

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Solution

The fourth proportional to 341,376.90, 470,897.16 and 220,589.40 is: 304,282.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,376.90 : 470,897.16 = 220,589.40 : x
  2. Step 2: Convert to fraction form
    341,376.90/470,897.16 = 220,589.40/x
  3. Step 3: Cross multiply
    341,376.90x = 470,897.16 × 220,589.40
  4. Step 4: Simplify right side
    341,376.90x = 103,874,921,986.10
  5. Step 5: Solve for x
    x = 103,874,921,986.10/341,376.90
  6. Step 6: Final answer
    x = 304,282.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.