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Finding the Fourth Proportional to 610,113.63, 915,189.71 and 210,777.15

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Solution

The fourth proportional to 610,113.63, 915,189.71 and 210,777.15 is: 316,172.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,113.63 : 915,189.71 = 210,777.15 : x
  2. Step 2: Convert to fraction form
    610,113.63/915,189.71 = 210,777.15/x
  3. Step 3: Cross multiply
    610,113.63x = 915,189.71 × 210,777.15
  4. Step 4: Simplify right side
    610,113.63x = 192,901,077,729.24
  5. Step 5: Solve for x
    x = 192,901,077,729.24/610,113.63
  6. Step 6: Final answer
    x = 316,172.38

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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.