Home / 251,595.36-347,192.16-138,417.60

Finding the Fourth Proportional to 251,595.36, 347,192.16 and 138,417.60

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Solution

The fourth proportional to 251,595.36, 347,192.16 and 138,417.60 is: 191,011.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,595.36 : 347,192.16 = 138,417.60 : x
  2. Step 2: Convert to fraction form
    251,595.36/347,192.16 = 138,417.60/x
  3. Step 3: Cross multiply
    251,595.36x = 347,192.16 × 138,417.60
  4. Step 4: Simplify right side
    251,595.36x = 48,057,505,526.02
  5. Step 5: Solve for x
    x = 48,057,505,526.02/251,595.36
  6. Step 6: Final answer
    x = 191,011.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.