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Finding the Fourth Proportional to 292,298.79, 403,406.36 and 243,153.59

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Solution

The fourth proportional to 292,298.79, 403,406.36 and 243,153.59 is: 335,580.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,298.79 : 403,406.36 = 243,153.59 : x
  2. Step 2: Convert to fraction form
    292,298.79/403,406.36 = 243,153.59/x
  3. Step 3: Cross multiply
    292,298.79x = 403,406.36 × 243,153.59
  4. Step 4: Simplify right side
    292,298.79x = 98,089,701,430.03
  5. Step 5: Solve for x
    x = 98,089,701,430.03/292,298.79
  6. Step 6: Final answer
    x = 335,580.25

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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.