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Finding the Fourth Proportional to 457,637.94, 631,510.29 and 256,395.06

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Solution

The fourth proportional to 457,637.94, 631,510.29 and 256,395.06 is: 353,808.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,637.94 : 631,510.29 = 256,395.06 : x
  2. Step 2: Convert to fraction form
    457,637.94/631,510.29 = 256,395.06/x
  3. Step 3: Cross multiply
    457,637.94x = 631,510.29 × 256,395.06
  4. Step 4: Simplify right side
    457,637.94x = 161,916,118,695.17
  5. Step 5: Solve for x
    x = 161,916,118,695.17/457,637.94
  6. Step 6: Final answer
    x = 353,808.34

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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.