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Finding the Fourth Proportional to 245,312.34, 338,500.70 and 141,964.26

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Solution

The fourth proportional to 245,312.34, 338,500.70 and 141,964.26 is: 195,893.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,312.34 : 338,500.70 = 141,964.26 : x
  2. Step 2: Convert to fraction form
    245,312.34/338,500.70 = 141,964.26/x
  3. Step 3: Cross multiply
    245,312.34x = 338,500.70 × 141,964.26
  4. Step 4: Simplify right side
    245,312.34x = 48,055,001,384.98
  5. Step 5: Solve for x
    x = 48,055,001,384.98/245,312.34
  6. Step 6: Final answer
    x = 195,893.13

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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.