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Finding the Fourth Proportional to 610,013.42, 915,142.54 and 210,668.84

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Solution

The fourth proportional to 610,013.42, 915,142.54 and 210,668.84 is: 316,045.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,013.42 : 915,142.54 = 210,668.84 : x
  2. Step 2: Convert to fraction form
    610,013.42/915,142.54 = 210,668.84/x
  3. Step 3: Cross multiply
    610,013.42x = 915,142.54 × 210,668.84
  4. Step 4: Simplify right side
    610,013.42x = 192,792,017,336.45
  5. Step 5: Solve for x
    x = 192,792,017,336.45/610,013.42
  6. Step 6: Final answer
    x = 316,045.53

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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.