Home / 286,666.48-395,600-157,607.16

Finding the Fourth Proportional to 286,666.48, 395,600 and 157,607.16

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Solution

The fourth proportional to 286,666.48, 395,600 and 157,607.16 is: 217,498.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,666.48 : 395,600 = 157,607.16 : x
  2. Step 2: Convert to fraction form
    286,666.48/395,600 = 157,607.16/x
  3. Step 3: Cross multiply
    286,666.48x = 395,600 × 157,607.16
  4. Step 4: Simplify right side
    286,666.48x = 62,349,392,496
  5. Step 5: Solve for x
    x = 62,349,392,496/286,666.48
  6. Step 6: Final answer
    x = 217,498.02

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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.