Home / 210,909.02-291,054.47-115,415.73

Finding the Fourth Proportional to 210,909.02, 291,054.47 and 115,415.73

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Solution

The fourth proportional to 210,909.02, 291,054.47 and 115,415.73 is: 159,273.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,909.02 : 291,054.47 = 115,415.73 : x
  2. Step 2: Convert to fraction form
    210,909.02/291,054.47 = 115,415.73/x
  3. Step 3: Cross multiply
    210,909.02x = 291,054.47 × 115,415.73
  4. Step 4: Simplify right side
    210,909.02x = 33,592,264,124.81
  5. Step 5: Solve for x
    x = 33,592,264,124.81/210,909.02
  6. Step 6: Final answer
    x = 159,273.72

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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.