Home / 356,916.78-492,634.71-242,389.26

Finding the Fourth Proportional to 356,916.78, 492,634.71 and 242,389.26

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Solution

The fourth proportional to 356,916.78, 492,634.71 and 242,389.26 is: 334,558.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,916.78 : 492,634.71 = 242,389.26 : x
  2. Step 2: Convert to fraction form
    356,916.78/492,634.71 = 242,389.26/x
  3. Step 3: Cross multiply
    356,916.78x = 492,634.71 × 242,389.26
  4. Step 4: Simplify right side
    356,916.78x = 119,409,362,807.22
  5. Step 5: Solve for x
    x = 119,409,362,807.22/356,916.78
  6. Step 6: Final answer
    x = 334,558.00

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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.