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Finding the Fourth Proportional to 304,802.64, 420,631.02 and 168,838.67

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Solution

The fourth proportional to 304,802.64, 420,631.02 and 168,838.67 is: 232,999.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,802.64 : 420,631.02 = 168,838.67 : x
  2. Step 2: Convert to fraction form
    304,802.64/420,631.02 = 168,838.67/x
  3. Step 3: Cross multiply
    304,802.64x = 420,631.02 × 168,838.67
  4. Step 4: Simplify right side
    304,802.64x = 71,018,783,029.12
  5. Step 5: Solve for x
    x = 71,018,783,029.12/304,802.64
  6. Step 6: Final answer
    x = 232,999.24

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1.5x scale

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.