Home / 210,496.18-315,747.06-70,254.76

Finding the Fourth Proportional to 210,496.18, 315,747.06 and 70,254.76

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Solution

The fourth proportional to 210,496.18, 315,747.06 and 70,254.76 is: 105,383.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,496.18 : 315,747.06 = 70,254.76 : x
  2. Step 2: Convert to fraction form
    210,496.18/315,747.06 = 70,254.76/x
  3. Step 3: Cross multiply
    210,496.18x = 315,747.06 × 70,254.76
  4. Step 4: Simplify right side
    210,496.18x = 22,182,733,921.01
  5. Step 5: Solve for x
    x = 22,182,733,921.01/210,496.18
  6. Step 6: Final answer
    x = 105,383.07

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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.