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Finding the Fourth Proportional to 349,547.70, 521,769.72 and 299,946.54

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Solution

The fourth proportional to 349,547.70, 521,769.72 and 299,946.54 is: 447,730.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,547.70 : 521,769.72 = 299,946.54 : x
  2. Step 2: Convert to fraction form
    349,547.70/521,769.72 = 299,946.54/x
  3. Step 3: Cross multiply
    349,547.70x = 521,769.72 × 299,946.54
  4. Step 4: Simplify right side
    349,547.70x = 156,503,020,441.36
  5. Step 5: Solve for x
    x = 156,503,020,441.36/349,547.70
  6. Step 6: Final answer
    x = 447,730.09

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.