Home / 245,501.34-338,838.36-153,663.21

Finding the Fourth Proportional to 245,501.34, 338,838.36 and 153,663.21

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Solution

The fourth proportional to 245,501.34, 338,838.36 and 153,663.21 is: 212,084.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,501.34 : 338,838.36 = 153,663.21 : x
  2. Step 2: Convert to fraction form
    245,501.34/338,838.36 = 153,663.21/x
  3. Step 3: Cross multiply
    245,501.34x = 338,838.36 × 153,663.21
  4. Step 4: Simplify right side
    245,501.34x = 52,066,990,068.74
  5. Step 5: Solve for x
    x = 52,066,990,068.74/245,501.34
  6. Step 6: Final answer
    x = 212,084.34

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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.