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Finding the Fourth Proportional to 170,848.70, 256,273.05 and 99,698.30

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Solution

The fourth proportional to 170,848.70, 256,273.05 and 99,698.30 is: 149,547.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,848.70 : 256,273.05 = 99,698.30 : x
  2. Step 2: Convert to fraction form
    170,848.70/256,273.05 = 99,698.30/x
  3. Step 3: Cross multiply
    170,848.70x = 256,273.05 × 99,698.30
  4. Step 4: Simplify right side
    170,848.70x = 25,549,987,420.82
  5. Step 5: Solve for x
    x = 25,549,987,420.82/170,848.70
  6. Step 6: Final answer
    x = 149,547.45

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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.