Home / 287,898.48-397,286.04-157,068.36

Finding the Fourth Proportional to 287,898.48, 397,286.04 and 157,068.36

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Solution

The fourth proportional to 287,898.48, 397,286.04 and 157,068.36 is: 216,746.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,898.48 : 397,286.04 = 157,068.36 : x
  2. Step 2: Convert to fraction form
    287,898.48/397,286.04 = 157,068.36/x
  3. Step 3: Cross multiply
    287,898.48x = 397,286.04 × 157,068.36
  4. Step 4: Simplify right side
    287,898.48x = 62,401,066,753.69
  5. Step 5: Solve for x
    x = 62,401,066,753.69/287,898.48
  6. Step 6: Final answer
    x = 216,746.77

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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.