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Finding the Fourth Proportional to 210,460.44, 315,707.04 and 70,218.96

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Solution

The fourth proportional to 210,460.44, 315,707.04 and 70,218.96 is: 105,333.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,460.44 : 315,707.04 = 70,218.96 : x
  2. Step 2: Convert to fraction form
    210,460.44/315,707.04 = 70,218.96/x
  3. Step 3: Cross multiply
    210,460.44x = 315,707.04 × 70,218.96
  4. Step 4: Simplify right side
    210,460.44x = 22,168,620,013.48
  5. Step 5: Solve for x
    x = 22,168,620,013.48/210,460.44
  6. Step 6: Final answer
    x = 105,333.91

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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.