Home / 210,905.02-291,048.95-115,411.73

Finding the Fourth Proportional to 210,905.02, 291,048.95 and 115,411.73

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Solution

The fourth proportional to 210,905.02, 291,048.95 and 115,411.73 is: 159,268.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,905.02 : 291,048.95 = 115,411.73 : x
  2. Step 2: Convert to fraction form
    210,905.02/291,048.95 = 115,411.73/x
  3. Step 3: Cross multiply
    210,905.02x = 291,048.95 × 115,411.73
  4. Step 4: Simplify right side
    210,905.02x = 33,590,462,257.12
  5. Step 5: Solve for x
    x = 33,590,462,257.12/210,905.02
  6. Step 6: Final answer
    x = 159,268.20

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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.