Home / 308,058.12-424,637.84-283,312.89

Finding the Fourth Proportional to 308,058.12, 424,637.84 and 283,312.89

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Solution

The fourth proportional to 308,058.12, 424,637.84 and 283,312.89 is: 390,528.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,058.12 : 424,637.84 = 283,312.89 : x
  2. Step 2: Convert to fraction form
    308,058.12/424,637.84 = 283,312.89/x
  3. Step 3: Cross multiply
    308,058.12x = 424,637.84 × 283,312.89
  4. Step 4: Simplify right side
    308,058.12x = 120,305,374,362.04
  5. Step 5: Solve for x
    x = 120,305,374,362.04/308,058.12
  6. Step 6: Final answer
    x = 390,528.17

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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.