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Finding the Fourth Proportional to 292,362.10, 438,413.55 and 134,638.90

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Solution

The fourth proportional to 292,362.10, 438,413.55 and 134,638.90 is: 201,898.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,362.10 : 438,413.55 = 134,638.90 : x
  2. Step 2: Convert to fraction form
    292,362.10/438,413.55 = 134,638.90/x
  3. Step 3: Cross multiply
    292,362.10x = 438,413.55 × 134,638.90
  4. Step 4: Simplify right side
    292,362.10x = 59,027,518,117.10
  5. Step 5: Solve for x
    x = 59,027,518,117.10/292,362.10
  6. Step 6: Final answer
    x = 201,898.67

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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.