Home / 210,584.40-315,893.16-70,343.52

Finding the Fourth Proportional to 210,584.40, 315,893.16 and 70,343.52

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Solution

The fourth proportional to 210,584.40, 315,893.16 and 70,343.52 is: 105,520.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,584.40 : 315,893.16 = 70,343.52 : x
  2. Step 2: Convert to fraction form
    210,584.40/315,893.16 = 70,343.52/x
  3. Step 3: Cross multiply
    210,584.40x = 315,893.16 × 70,343.52
  4. Step 4: Simplify right side
    210,584.40x = 22,221,036,818.32
  5. Step 5: Solve for x
    x = 22,221,036,818.32/210,584.40
  6. Step 6: Final answer
    x = 105,520.81

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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.