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Finding the Fourth Proportional to 371,696.85, 512,948.03 and 210,547.89

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Solution

The fourth proportional to 371,696.85, 512,948.03 and 210,547.89 is: 290,559.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,696.85 : 512,948.03 = 210,547.89 : x
  2. Step 2: Convert to fraction form
    371,696.85/512,948.03 = 210,547.89/x
  3. Step 3: Cross multiply
    371,696.85x = 512,948.03 × 210,547.89
  4. Step 4: Simplify right side
    371,696.85x = 108,000,124,343.42
  5. Step 5: Solve for x
    x = 108,000,124,343.42/371,696.85
  6. Step 6: Final answer
    x = 290,559.70

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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.