Home / 212,468.02-318,702.06-70,275.16

Finding the Fourth Proportional to 212,468.02, 318,702.06 and 70,275.16

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Solution

The fourth proportional to 212,468.02, 318,702.06 and 70,275.16 is: 105,412.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,468.02 : 318,702.06 = 70,275.16 : x
  2. Step 2: Convert to fraction form
    212,468.02/318,702.06 = 70,275.16/x
  3. Step 3: Cross multiply
    212,468.02x = 318,702.06 × 70,275.16
  4. Step 4: Simplify right side
    212,468.02x = 22,396,838,258.83
  5. Step 5: Solve for x
    x = 22,396,838,258.83/212,468.02
  6. Step 6: Final answer
    x = 105,412.75

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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.