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Finding the Fourth Proportional to 385,710.48, 532,216.98 and 242,368.92

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Solution

The fourth proportional to 385,710.48, 532,216.98 and 242,368.92 is: 334,429.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,710.48 : 532,216.98 = 242,368.92 : x
  2. Step 2: Convert to fraction form
    385,710.48/532,216.98 = 242,368.92/x
  3. Step 3: Cross multiply
    385,710.48x = 532,216.98 × 242,368.92
  4. Step 4: Simplify right side
    385,710.48x = 128,992,854,648.26
  5. Step 5: Solve for x
    x = 128,992,854,648.26/385,710.48
  6. Step 6: Final answer
    x = 334,429.22

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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.