Home / 272,643.20-376,238.40-153,388.16

Finding the Fourth Proportional to 272,643.20, 376,238.40 and 153,388.16

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Solution

The fourth proportional to 272,643.20, 376,238.40 and 153,388.16 is: 211,670.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,643.20 : 376,238.40 = 153,388.16 : x
  2. Step 2: Convert to fraction form
    272,643.20/376,238.40 = 153,388.16/x
  3. Step 3: Cross multiply
    272,643.20x = 376,238.40 × 153,388.16
  4. Step 4: Simplify right side
    272,643.20x = 57,710,515,897.34
  5. Step 5: Solve for x
    x = 57,710,515,897.34/272,643.20
  6. Step 6: Final answer
    x = 211,670.48

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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.