Home / 305,467.07-421,524.29-169,492.40

Finding the Fourth Proportional to 305,467.07, 421,524.29 and 169,492.40

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Solution

The fourth proportional to 305,467.07, 421,524.29 and 169,492.40 is: 233,888.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,467.07 : 421,524.29 = 169,492.40 : x
  2. Step 2: Convert to fraction form
    305,467.07/421,524.29 = 169,492.40/x
  3. Step 3: Cross multiply
    305,467.07x = 421,524.29 × 169,492.40
  4. Step 4: Simplify right side
    305,467.07x = 71,445,161,886.51
  5. Step 5: Solve for x
    x = 71,445,161,886.51/305,467.07
  6. Step 6: Final answer
    x = 233,888.27

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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.