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Finding the Fourth Proportional to 305,312.01, 421,320.61 and 184,432.25

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Solution

The fourth proportional to 305,312.01, 421,320.61 and 184,432.25 is: 254,510.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,312.01 : 421,320.61 = 184,432.25 : x
  2. Step 2: Convert to fraction form
    305,312.01/421,320.61 = 184,432.25/x
  3. Step 3: Cross multiply
    305,312.01x = 421,320.61 × 184,432.25
  4. Step 4: Simplify right side
    305,312.01x = 77,705,108,073.67
  5. Step 5: Solve for x
    x = 77,705,108,073.67/305,312.01
  6. Step 6: Final answer
    x = 254,510.49

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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.