Home / 386,210.86-533,002.40-214,145.91

Finding the Fourth Proportional to 386,210.86, 533,002.40 and 214,145.91

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Solution

The fourth proportional to 386,210.86, 533,002.40 and 214,145.91 is: 295,538.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,210.86 : 533,002.40 = 214,145.91 : x
  2. Step 2: Convert to fraction form
    386,210.86/533,002.40 = 214,145.91/x
  3. Step 3: Cross multiply
    386,210.86x = 533,002.40 × 214,145.91
  4. Step 4: Simplify right side
    386,210.86x = 114,140,283,980.18
  5. Step 5: Solve for x
    x = 114,140,283,980.18/386,210.86
  6. Step 6: Final answer
    x = 295,538.77

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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.