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Finding the Fourth Proportional to 390,300.09, 584,393.08 and 202,917.93

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Solution

The fourth proportional to 390,300.09, 584,393.08 and 202,917.93 is: 303,827.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    390,300.09 : 584,393.08 = 202,917.93 : x
  2. Step 2: Convert to fraction form
    390,300.09/584,393.08 = 202,917.93/x
  3. Step 3: Cross multiply
    390,300.09x = 584,393.08 × 202,917.93
  4. Step 4: Simplify right side
    390,300.09x = 118,583,831,781.63
  5. Step 5: Solve for x
    x = 118,583,831,781.63/390,300.09
  6. Step 6: Final answer
    x = 303,827.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.