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Finding the Fourth Proportional to 153,648.50, 230,511.63 and 42,840.50

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Solution

The fourth proportional to 153,648.50, 230,511.63 and 42,840.50 is: 64,271.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,648.50 : 230,511.63 = 42,840.50 : x
  2. Step 2: Convert to fraction form
    153,648.50/230,511.63 = 42,840.50/x
  3. Step 3: Cross multiply
    153,648.50x = 230,511.63 × 42,840.50
  4. Step 4: Simplify right side
    153,648.50x = 9,875,233,485.02
  5. Step 5: Solve for x
    x = 9,875,233,485.02/153,648.50
  6. Step 6: Final answer
    x = 64,271.59

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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.