Home / 390,463.02-585,784.76-165,830.81

Finding the Fourth Proportional to 390,463.02, 585,784.76 and 165,830.81

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Solution

The fourth proportional to 390,463.02, 585,784.76 and 165,830.81 is: 248,784.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    390,463.02 : 585,784.76 = 165,830.81 : x
  2. Step 2: Convert to fraction form
    390,463.02/585,784.76 = 165,830.81/x
  3. Step 3: Cross multiply
    390,463.02x = 585,784.76 × 165,830.81
  4. Step 4: Simplify right side
    390,463.02x = 97,141,157,478.38
  5. Step 5: Solve for x
    x = 97,141,157,478.38/390,463.02
  6. Step 6: Final answer
    x = 248,784.53

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.