Home / 210,598.12-315,702.78-105,325.48

Finding the Fourth Proportional to 210,598.12, 315,702.78 and 105,325.48

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Solution

The fourth proportional to 210,598.12, 315,702.78 and 105,325.48 is: 157,891.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,598.12 : 315,702.78 = 105,325.48 : x
  2. Step 2: Convert to fraction form
    210,598.12/315,702.78 = 105,325.48/x
  3. Step 3: Cross multiply
    210,598.12x = 315,702.78 × 105,325.48
  4. Step 4: Simplify right side
    210,598.12x = 33,251,546,840.83
  5. Step 5: Solve for x
    x = 33,251,546,840.83/210,598.12
  6. Step 6: Final answer
    x = 157,891.00

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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.