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Finding the Fourth Proportional to 255,071.70, 382,607.55 and 65,531.70

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Solution

The fourth proportional to 255,071.70, 382,607.55 and 65,531.70 is: 98,297.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,071.70 : 382,607.55 = 65,531.70 : x
  2. Step 2: Convert to fraction form
    255,071.70/382,607.55 = 65,531.70/x
  3. Step 3: Cross multiply
    255,071.70x = 382,607.55 × 65,531.70
  4. Step 4: Simplify right side
    255,071.70x = 25,072,923,184.34
  5. Step 5: Solve for x
    x = 25,072,923,184.34/255,071.70
  6. Step 6: Final answer
    x = 98,297.55

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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.