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Finding the Fourth Proportional to 341,070.42, 511,518.36 and 101,128.20

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Solution

The fourth proportional to 341,070.42, 511,518.36 and 101,128.20 is: 151,666.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,070.42 : 511,518.36 = 101,128.20 : x
  2. Step 2: Convert to fraction form
    341,070.42/511,518.36 = 101,128.20/x
  3. Step 3: Cross multiply
    341,070.42x = 511,518.36 × 101,128.20
  4. Step 4: Simplify right side
    341,070.42x = 51,728,931,013.75
  5. Step 5: Solve for x
    x = 51,728,931,013.75/341,070.42
  6. Step 6: Final answer
    x = 151,666.42

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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.